C++字符串转数字

C++字符串转数字

---

#include <iostream>
#include <sstream>

using namespace std;

int stringToInt(string str)
{
    int result;
    istringstream is(str);
    is >> result;
    return result;
}

int main()
{
    cout << stringToInt("Hello,world!") << endl;
    cout << stringToInt("0000") << endl;
    cout << stringToInt("0011") << endl;
    cout << stringToInt("999999999999999999") << endl;
    return 0;
}